The most common such abnormality is patent foramen ovale, occurring in about 25 of the adult population, but here the defect functions as a valve which is normally closed, because pressure is slightly higher in the left side of the heart.

A shuttle valve is a type of valve which allows fluid to flow through it from one of two sources.

In practice, the language barrier impairs this safety valve.

Labor migration operated as a safety valve against even worse unemployment.

It was developed by Valve Corporation and released on June 1, 2006.

This is actually a heart valve that we've engineered, and you can see here, we have the structure of the heart valve and we've seeded that with cells, and then we exercise it.

This may be able to provide higher tidal volumes than a Bag Valve Mask.

Closed cup testers normally give lower values for the flash point than open cup (typically lower) and are a better approximation to the temperature at which the vapor pressure reaches the lower flammable limit.

Just breathe normally.

At best, it is a safety valve for democracy rather than an engine of it.

Bentall procedure Replacement of the damaged section of aorta and replacement of the aortic valve.

Lightning normally accompanies thunder.

A back pressure valve on the gas outlet to maintain a steady pressure in the vessel.

These systems use a flywheel and valve attached to a hydraulic line that feeds the brake cylinders.

The fastest version of the Mark III on the UK market was the 16 valve h model.

This pushrod engine includes variable valve timing, a first in a mass produced non overhead cam engine.

Their instructions just walk normally.

The exhaust pressure is controlled by a regulating valve to suit the needs of the process steam pressure.

A closed society will eventually return to a closed economy.

It normally occurs as the dihydrate.

The process was conducted in a closed group, behind closed doors.

Leave Closed

Normally we think about technology as interactive.

This is the time he normally arrives.

Normally, revolutions are followed by dangerous times.

They normally feed alone or in pairs.

The mitral valve opens when the pressure in the left atrium is greater than the pressure in the left ventricle.

This features styling similar to that of the contemporary Golf GTI and a turbocharged 20 valve 1.8 litre petrol engine.

By providing a secondary demand valve the need to alternately breathe off the same mouthpiece when sharing air is eliminated.

The assessment of the value shall normally be based on reliable statistical evidence on the prices normally paid for comparable pieces of land.

closed around them

closed around them

Closed circuit television

1070th meeting (closed)

1071st meeting (closed)

That debate has been left to fester, serving as a dangerously dysfunctional pressure valve for turbulent and frustrated citizens across Europe.

If either a bag valve mask or a mechanical ventilator is used with an oxygen supply, this rises to 99 oxygen.

So they don't normally let you do that.

Protectionism normally thrives in times of economic peril.

From that point, the bank should operate normally.

LONDON Normally, British politics is a ferocious sport.

People normally have two copies of this chromosome.

Its concentration in serum is normally very low.

The Commission meets biennially, normally at its headquarters.

References External links Echocardiography in Mitral stenosis at Wikiecho Echocardiographic features of Mitral Stenosis Mitral Valve Repair at The Mount Sinai Hospital